On 1/16/19 19:09, Otto Moerbeek wrote:
On Wed, Jan 16, 2019 at 01:25:25PM +0000, Stuart Henderson wrote:

On 2019/01/04 08:09, Otto Moerbeek wrote:
On Thu, Dec 27, 2018 at 09:39:56AM +0100, Otto Moerbeek wrote:


Very little feedback so far. This diff can only give me valid feedback
if the coverage of systems and use cases is wide.  If I do not get
more feedback, I have to base my decisions on my own testing, which
will benefit my systems and use cases, but might harm yours.

So, ladies and gentlemen, start your tests!

Another reminder. I like to make progress on this. That means I need
tests for various use-cases.

I have a map based website I use that is quite good at stressing things
(high spin% cpu) and have been timing from opening chromium (I'm using
this for the test because it typically performs less well than firefox).
Time is real time from starting the browser set to 'start with previously
opened windows' and the page open, until when the page reports that it's
finished loading (i.e. fetching data from the server and rendering it).

It's not a perfect test - depends on network/server conditions etc - and
it's a visualisation of conditions in a game so may change slightly from
run to run but there shouldn't be huge changes between the times I've
run it - but is a bit more repeatable than a subjective "does the browser
feel slow".

4x "real" cores, Xeon E3-1225v3, 16GB ram (not going into swap).

I've mixed up the test orders so it's not 3x +++, 2x ++, 3x + etc in order,
more like +++, -, '', -, ++ etc.

  +++   90      98      68
  ++    85      82
  +     87      56      71
  ''    76      60      69      88
  -     77      74      85
  --    48      86      77      67

So while it's not very consistent, the fastest times I've seen are on
runs with fewer pools, and the slowest times on runs with more pools,
with '' possibly seeming a bit more consistent from run to run. But
there's not enough consistency with any of it to be able to make any
clear conclusion (and I get the impression it would be hard to
tell without some automated test that can be repeated many times
and carrying out a statistical analysis on results).


Thanks for testing. To be clear: this is with the diff I posted and not the
committed code, right? (There is a small change in the committed code
to change the default to what 1 plus was with the diff).

        -Otto


Hello,

Given that code is in base for about 4 years, shouldn't be the man page modified to add an explanation for those ++--? Or is there a reason why it's not documented?

Best Regards

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